CVE-2022-49380 (GCVE-0-2022-49380)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:11 – Updated: 2026-08-15 12:22
VLAI
Title
f2fs: fix to avoid f2fs_bug_on() in dec_valid_node_count()
Summary
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid f2fs_bug_on() in dec_valid_node_count() As Yanming reported in bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=215897 I have encountered a bug in F2FS file system in kernel v5.17. The kernel should enable CONFIG_KASAN=y and CONFIG_KASAN_INLINE=y. You can reproduce the bug by running the following commands: The kernel message is shown below: kernel BUG at fs/f2fs/f2fs.h:2511! Call Trace: f2fs_remove_inode_page+0x2a2/0x830 f2fs_evict_inode+0x9b7/0x1510 evict+0x282/0x4e0 do_unlinkat+0x33a/0x540 __x64_sys_unlinkat+0x8e/0xd0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae The root cause is: .total_valid_block_count or .total_valid_node_count could fuzzed to zero, then once dec_valid_node_count() was called, it will cause BUG_ON(), this patch fixes to print warning info and set SBI_NEED_FSCK into CP instead of panic.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 39a53e0ce0df01b3cf4bb898c7ae2fd2189647d5 , < f8b3c3fcf33105bc1ee7788e3b51b0a1ae42ae53 (git)
Affected: 39a53e0ce0df01b3cf4bb898c7ae2fd2189647d5 , < 2766ddaf45b69252bb8fe526b5b6e56904a9ae7a (git)
Affected: 39a53e0ce0df01b3cf4bb898c7ae2fd2189647d5 , < bce859358d3d5940aa858e40ceee70ee6e76130e (git)
Affected: 39a53e0ce0df01b3cf4bb898c7ae2fd2189647d5 , < 89d9a48d0cd30429463ea4e37ca83be6773ed5eb (git)
Affected: 39a53e0ce0df01b3cf4bb898c7ae2fd2189647d5 , < ccffa99ae6a1f44797b57444c6a80382a42928fe (git)
Affected: 39a53e0ce0df01b3cf4bb898c7ae2fd2189647d5 , < 4d17e6fe9293d57081ffdc11e1cf313e25e8fd9e (git)
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Linux Linux Affected: 3.8
Unaffected: 0 , < 3.8 (semver)
Unaffected: 5.4.198 , ≤ 5.4.* (semver)
Unaffected: 5.10.121 , ≤ 5.10.* (semver)
Unaffected: 5.15.46 , ≤ 5.15.* (semver)
Unaffected: 5.17.14 , ≤ 5.17.* (semver)
Unaffected: 5.18.3 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix to avoid f2fs_bug_on() in dec_valid_node_count()\n\nAs Yanming reported in bugzilla:\n\nhttps://bugzilla.kernel.org/show_bug.cgi?id=215897\n\nI have encountered a bug in F2FS file system in kernel v5.17.\n\nThe kernel should enable CONFIG_KASAN=y and CONFIG_KASAN_INLINE=y. You can\nreproduce the bug by running the following commands:\n\nThe kernel message is shown below:\n\nkernel BUG at fs/f2fs/f2fs.h:2511!\nCall Trace:\n f2fs_remove_inode_page+0x2a2/0x830\n f2fs_evict_inode+0x9b7/0x1510\n evict+0x282/0x4e0\n do_unlinkat+0x33a/0x540\n __x64_sys_unlinkat+0x8e/0xd0\n do_syscall_64+0x3b/0x90\n entry_SYSCALL_64_after_hwframe+0x44/0xae\n\nThe root cause is: .total_valid_block_count or .total_valid_node_count\ncould fuzzed to zero, then once dec_valid_node_count() was called, it\nwill cause BUG_ON(), this patch fixes to print warning info and set\nSBI_NEED_FSCK into CP instead of panic."
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            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: f2fs: correcci\u00f3n para evitar f2fs_bug_on() en dec_valid_node_count() Como inform\u00f3 Yanming en bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=215897 He encontrado un error en el sistema de archivos F2FS en el kernel v5.17. El kernel deber\u00eda habilitar CONFIG_KASAN=y y CONFIG_KASAN_INLINE=y. Puede reproducir el error ejecutando los siguientes comandos: El mensaje del kernel se muestra a continuaci\u00f3n: kernel BUG at fs/f2fs/f2fs.h:2511! Call Trace: f2fs_remove_inode_page+0x2a2/0x830 f2fs_evict_inode+0x9b7/0x1510 evict+0x282/0x4e0 do_unlinkat+0x33a/0x540 __x64_sys_unlinkat+0x8e/0xd0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae The root cause is: .total_valid_block_count or .total_valid_node_count could fuzzed to zero, then once dec_valid_node_count() was called, it will cause BUG_ON(), este parche corrige la impresi\u00f3n de informaci\u00f3n de advertencia y la configuraci\u00f3n de SBI_NEED_FSCK en CP en lugar de p\u00e1nico."
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      "current_release_date": "2026-10-16T14:23:45Z",
      "cve": "CVE-2022-49380",
      "id": "CVE-2022-49380",
      "initial_release_date": "2025-02-27T03:07:52Z",
      "product_status:known_affected": "0",
      "product_status:known_not_affected": "458",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-49380",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/2025/cve-2022-49380.json",
      "version": "17"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.